Valve Spring Installation Notes

Melling 466474 Performance Valve Spring Technical Specifications:

• This valve spring is available by size only and is not engine specific
• Closed Pressure: 160 PSI
• Coil Bind Height: 1.193 in. (30 mm)
• Inside Diameter Top: 0.665 in. (17 mm)
• Inside Diameter Bottom: 1.016 (27 mm)
• Installed Height: 1.900 in. (48 mm)
• Installed Pressure: 160 PSI
• Open Pressure: 400 PSI
• Outside Diameter Top: 1.075 in. (27 mm)
• Outside Diameter Bottom: 1.426 in. (36 mm)
• Spring Closed Height: 1.900 in. (48 mm)
• Spring Open Height: 1.250 in. (32 mm)
• Spring Type: Performance Beehive
• Material: Chrome Silicone